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Patent Searching and Data


Title:
POWER CONVERSION DEVICE AND AIR CONDITIONING DEVICE USING SAME
Document Type and Number:
WIPO Patent Application WO/2017/141308
Kind Code:
A1
Abstract:
A power conversion device of the present invention is provided with: a rectifier that rectifies an alternating current voltage supplied from a three-phase alternating current power supply; a transformation circuit, which has at least a reactor, a switching element, and a backflow prevention element, and which transforms the thus rectified voltage; a smoothing capacitor that smoothes an output voltage of the transformation circuit; an inverter that converts the thus smoothed direct current voltage into an alternating current voltage; a power supply voltage detector that detects a power supply voltage of the three-phase alternating current power supply; an output voltage detector that detects an output voltage of the transformation circuit; a current detector that detects a reactor current flowing in the reactor; and a converter control unit that controls, on the basis of the power supply voltage, the output voltage, and the reactor current, operations of the switching element so that a current deviation from a reactor current value previously set is close to a previously set current deviation.

Inventors:
YUASA, Kenta (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
TSUMURA, Akihiro (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
KUSUBE, Shinsaku (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2016/054265
Publication Date:
August 24, 2017
Filing Date:
February 15, 2016
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
H02M7/12; F24F11/02; H02M3/155
Foreign References:
JP2014155237A2014-08-25
JP2013162529A2013-08-19
US20030075997A12003-04-24
US20030141857A12003-07-31
JP2014236001A2014-12-15
US20140167508A12014-06-19
JP2010273490A2010-12-02
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (East 8F, TORANOMON TWIN BLDG. 10-1 Toranomon 2-chome, Minato-k, Tokyo 01, 〒1050001, JP)
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